You didn't specify your exact location in Finland, neither your interests. But for starters check out Meetup.com: http://www.meetup.com/find/?allMeetups=true&radius=5&userFre... and if you live in Helsinki area, also keep eye on Aaltoes.com, ArcticStartup.com and Startupdigests/Helsinki.

You'll notice that most meet-ups are in Helsinki area, if you are located somewhere else than Hesari, then look up local entrepreneurship societies - there'll meet many English speaking tech-minded people too.